The adrenal gland releases adrenaline
Answer:
yes of course they have always been able to do it
<span>1: the brain will naturally become strained and fear hormones will be released causing u to become more alert.
</span><span>2: If fear hormones are not released, you would not be alert and have a higher chance of being harmed if danger is near.
</span>3: When you are not alert you tend to rely on violence more but if you r alert you would probably run away.